Napoleon III copper award medal by Caque & Oudine; engraved on reverse for 'Paris - Corroyer / Amiens / Emploi De La Chaleur. Torrefacteur A Air'; 2.68 in., Also, Napoleon III Exposition Universelle copper medal by Bovy, crowded scene in front of the Paiais de L'Industrie building on obverse. 2.87 in.
- Obverse - Obverse means the front face of a coin or medal, and the reverse means the back face. The obverse of a coin is commonly called heads, because it often depicts the head of a monarch or famous person.
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